Struct

GdkEventButton

Description [src]

struct GdkEventButton {
  GdkEventType type;
  GdkWindow* window;
  gint8 send_event;
  guint32 time;
  gdouble x;
  gdouble y;
  gdouble* axes;
  GdkModifierType* state;
  guint button;
  GdkDevice* device;
  gdouble x_root;
  gdouble y_root;
}

Used for button press and button release events. The type field will be one of GDK_BUTTON_PRESS, GDK_2BUTTON_PRESS, GDK_3BUTTON_PRESS or GDK_BUTTON_RELEASE,

Double and triple-clicks result in a sequence of events being received. For double-clicks the order of events will be:

GDK_BUTTON_PRESS
GDK_BUTTON_RELEASE
GDK_BUTTON_PRESS
GDK_2BUTTON_PRESS
GDK_BUTTON_RELEASE

Note that the first click is received just like a normal button press, while the second click results in a GDK_2BUTTON_PRESS being received just after the GDK_BUTTON_PRESS.

Triple-clicks are very similar to double-clicks, except that GDK_3BUTTON_PRESS is inserted after the third click. The order of the events is:

GDK_BUTTON_PRESS
GDK_BUTTON_RELEASE
GDK_BUTTON_PRESS
GDK_2BUTTON_PRESS
GDK_BUTTON_RELEASE
GDK_BUTTON_PRESS
GDK_3BUTTON_PRESS
GDK_BUTTON_RELEASE

For a double click to occur, the second button press must occur within 1/4 of a second of the first. For a triple click to occur, the third button press must also occur within 1/2 second of the first button press.

Structure members

`type`	The type of the event (`GDK_BUTTON_PRESS`, `GDK_2BUTTON_PRESS`, `GDK_3BUTTON_PRESS` or `GDK_BUTTON_RELEASE`).
`window`	The window which received the event.
`send_event`	`TRUE` if the event was sent explicitly.
`time`	The time of the event in milliseconds.
`x`	The x coordinate of the pointer relative to the window.
`y`	The y coordinate of the pointer relative to the window.
`axes`	`x`, `y` translated to the axes of `device`, or `NULL` if `device` is the mouse.
`state`	A bit-mask representing the state of the modifier keys (e.g. Control, Shift and Alt) and the pointer buttons. See `GdkModifierType`.
`button`	The button which was pressed or released, numbered from 1 to 5. Normally button 1 is the left mouse button, 2 is the middle button, and 3 is the right button. On 2-button mice, the middle button can often be simulated by pressing both mouse buttons together.
`device`	The master device that the event originated from. Use `gdk_event_get_source_device()` to get the slave device.
`x_root`	The x coordinate of the pointer relative to the root of the screen.
`y_root`	The y coordinate of the pointer relative to the root of the screen.